Results 71 to 80 of about 169,137 (301)

Breakdown of the interlayer coherence in twisted bilayer graphene

open access: yes, 2012
Coherent motion of the electrons in the Bloch states is one of the fundamental concepts of the charge conduction in solid state physics. In layered materials, however, such a condition often breaks down for the interlayer conduction, when the interlayer ...
Dong Chul Kim   +12 more
core   +1 more source

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu   +5 more
wiley   +1 more source

Incommensurate ground state of double-layer quantum Hall systems [PDF]

open access: yes, 2001
Double-layer quantum Hall systems possess interlayer phase coherence at sufficiently small layer separations, even without interlayer tunneling. When interlayer tunneling is present, application of a sufficiently strong in-plane magnetic field $B_ ...
A. H. MacDonald   +38 more
core   +1 more source

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

open access: yesAdvanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger   +10 more
wiley   +1 more source

Interlayer Registry Determines the Sliding Potential of Layered Metal Dichalcogenides: The case of 2H-MoS2

open access: yes, 2012
We provide a simple and intuitive explanation for the interlayer sliding energy landscape of metal dichalcogenides. Based on the recently introduced registry index (RI) concept, we define a purely geometrical parameter which quantifies the degree of ...
Adi Blumberg   +36 more
core   +1 more source

Tunneling between two-dimensional electron systems in a high magnetic field: role of interlayer interactions [PDF]

open access: yes, 2005
We calculate the tunneling current for a bilayer quantum Hall system in the interlayer incoherent regime. In order to capture the strong correlation effects we model the layers as two Wigner crystals coupled through interlayer Coulomb interactions ...
Dorsey, A. T., Klironomos, F. D.
core   +1 more source

Tuning the Dielectric Properties of Individual Clay Nanosheets by Interlayer Composition: Toward Nano‐Electret Materials

open access: yesAdvanced Functional Materials, EarlyView.
The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich   +6 more
wiley   +1 more source

Interfacial Cracking Failure Mechanism of Chromium-Coated Zircaloy Cladding for ATF Materials

open access: yesMetals
In this study, the interfacial cracking mechanism of Cr-coated Zircaloy cladding tubes was investigated through a combination of tensile testing, advanced microstructural characterization, and first-principle calculations.
Xinfeng Li   +5 more
doaj   +1 more source

Influence of Process Parameters on the Microstructural and Mechanical Characteristics of TLP Bonded IN718 [PDF]

open access: yesArchives of Metallurgy and Materials
study explores the role of process parameters in joining IN718 with the TLP bonding process is explored. Microstructure evolution and mechanical performance of the bond are investigated using scanning electron microscopy, tensile test, and micro-hardness
U.K. Tarai   +5 more
doaj   +1 more source

Evolution of the bilayer nu = 1 quantum Hall state under charge imbalance

open access: yes, 2004
We use high-mobility bilayer hole systems with negligible tunneling to examine how the bilayer nu = 1 quantum Hall state evolves as charge is transferred from one layer to the other at constant total density.
A. P. Micolich   +10 more
core   +1 more source

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